Isolation of neopentyl glycol hydroxypivalate

US4665219A · kind A · utility

Assignee

• BASF SE

Inventors

• Franz Merger · Bischofswerda, DE
• Peter Hettinger · Haus Ferring, DE
• Theodor Weber · Ludwigshafen, DE
• Guenter Boettger · Bad Dürkheim, DE
• Wolfgang Koernig · Dossenheim, DE

Key dates

• Filing date: Sep 5, 1985
• Grant date: May 12, 1987
• Expiry date: Sep 5, 2005

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C67/58
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Neopentyl glycol hydroxypivalate is isolated from a reaction mixture obtained from a Tishchenko reaction of hydroxypivalaldehyde in the presence of calcium hydroxide, barium hydroxide or strontium hydroxide, by adding acid, removing the salts formed by adjusting the water content in the reaction mixture to 20-60% and extracting the salts at above 50.degree. C. and working up the residual mixture by distillation.